3 What goes around comes around - Biogeochemical cycling of Iron, Sulfur & Carbon in the Environment

Chair: Kerstin Hockmann, Felix Beulig, Martin Obst

Thursday, 14:30-15:30, H 36

In terrestrial and aquatic environments, the individual and coupled reactions of iron (Fe), sulfur (S) and carbon (C) are controlled by a complex interplay between hydrological, geochemical, and microbial processes. Due to their reactivity, Fe, S, and C species play a key role in maintaining important ecosystem services, such as the removal of environmental pollutants, and the supply of carbon, nitrogen as well as other essential nutrients. This session welcomes contributions from laboratory experiments, field studies, and theoretical approaches that improve our understanding of the biogeochemical cycling of Fe, S and C, including their impact on nutrient and contaminant dynamics. We especially encourage contributions that use multidisciplinary approaches and novel analytical methods to explore biogeochemical processes across multiple spatial and temporal scales.

14:30	O 3.1: Philipp Knobloch et al.: Not with our species! Peatlands being no sinks for methylated and thiolated arsenates
14:45	O 3.2: Laura Wegner et al.: Mobility of toxic antimony during aeration of Fe(II)-rich waters
15:00	O 3.3: José Miguel León Ninin et al.: Old and gassy: Increasing methane release from a paddy soils chronosequence with climate change
15:15	O 3.4: Peter Stimmler et al.: Deep thaw - What is the answer to permafrost, microbes, silicon and all the rest?
15:30	Afternoon Poster Session
16:00

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Poster

P 3.1	Mitra Ghotbi, Knief Claudia, Horwath William R. C and N isotopes for tracing erosion and estimating soil organic matter turnover in Upper Eastern Ghana hilly farmland
P 3.2	Manuel Vergara Sosa, Eva Lehndorff, Andrei Rodionov, Martina Gocke, Wulf Amelung Micro-scale resolution of carbon turnover in soil - Insights from laser ablation isotope ratio mass spectrometry on water-glass embedded aggregates

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